Tractor



s. a. nu BRIE.

TRACTOR- APPLICATION fl LED NOV. 4. 191B- RENEWED DEC. 1, 1920. 1,385,249. PatentedJuly 19,1921.

2 SHEETS-SHEET l.

s a. nu BRIE. TRACTOR.

APPLICATION FILED NOV. 4, 1918- RENEWED DEC. 1,1920.

Patented July 19,1921.

2 SHEEI S-SHEET 2.

STANLEY .R. DU BRIE, OF DETROIT, MICHIGAN, ASSIGN OF DETROIT, MICHIGAN.

TRACTOR.

Application filed November 4, 1918, Serial No. 261,092.

1 0 all whom it may concern Be it known that I, S'rANLny 1t. DU BRIE, a citizen of the United States of America, residing at Detroit, in the county of \Vayne and State of Michigan, have invented certain new and useful Improvements in Tractors, of which the following is a specification, reference being had therein to the accom panying drawings.

The primary object of my invention is to provide a tractor that may be advantageously used for agricultural purposes and wherein the power plant is disposed relative to a traction wheel so that maximum power may be delivered as near as possible to the tractive center of the traction wheel, and thus eliminate the torque on driving connections and stresses and strains incident to the transmission of power from an engine to a traction wheel.

Another object of my invention is to provide a two-wheel tractor wherein the power plant alines with the wheels of the tractor and has a power transmission mechanism devoid of complicated parts; easy to control, and not liable to injury by ordinary use.

A further object of my invention is to provide a tractor to which various kinds of farm implements may be attached and adjusted and special provision is made so that implements may be drawn by the tractor relative to small growing plants, the tractor having a third Wheel attacl'lment that bridges small plants and permits of an implement being 0 erated to till soil in proximity to said p ants.

e above are a few of theobjects attained by my novel tractor, which will be hereinafter described and then claimed.

Reference will now be had to the drawings, wherein Figure 1 is a side elevation of the tractor;

Fig. 2 is a plan of the same;

Fig. 3 is a view ofthe rear end of the tractor, partly broken away; and

Fig. 4 is an enlarged detail sectional view of a portion of the traction wheel and'its bearings.

The tractor comprises an oblong frame or chassis having longitudinal parallel side members 1 and 2 with the forward ends thereof connected by an upwardly and forwardly extending head piece 3 providing a bearing 6 in which is journaled a post 4 on a yoke 5. Rotatable in the yoke 5 is a Specification of Letters Patent.

Renewed Deceinb steering wheel 6 J'Ulftj 5 is somewl iiblllllil) caster a supporting the and steering OR TO EDWARD H. KRAMER,

Patented July .19, 1921.

or 1, 192G. Serial No. 427,658.

and this wheel with the lat 1n the form 01' an adilil wiastitntes means for forward end of the tractor the same in a desired direction.

The upper end of the post 4t has a sector gear '7 and meshing gear wheel 8 on the therewith is a beveled forward end of a rearwardly extending steer-hip; shaft 9 that has the rear end ther wheel 10.

shaft 9 is eof n'ovided with suitable The forward end of the steering supported in a suitable bearing 11 carried by the head 1 -3 and the rear end of said steering shaft journaled in a bracket 12 supported in a manner to be hereinafter relierred to.

The side meml rear end of the tractor, are transverse alining shown in Figs. 2 ing 14 18 one end )ers 1 and 2, adjacent the provided with bearings 13 and 1%, best and l. Fixed in the hearof an axle 15 and the oppos-site end of said axle is fixed in a yoke 16 having a hub 13, said yoke being 17 mounted in the bearing a continuation of the axle 15 and corresponding somewhat to a solid axle provid ed with an opening adjacent one end thereof.

Rotatahle on the axle -l5,

between the yoke 16 and the bearing 1 .1: the hub portion 17 of a tiu-iction wheel, generally dos ignatcd 18. '1. his wheel. unde ditions longitudi 111g "wheel (3 and made of sullicie t with the steer] n two-wheel tractor. he oil? any well lruown design,

normal coni-ally alilacs with the steel Lid traction. wheel may be width so as to cooperate .0 wheel, in iroviding a but for agricultural purpor-l :1, includes a ribbed tread or spuds 19 and in order that said traction wheel may provnled with eled gear wheel 2 be driven, one side thereof is a large circular rack or bev- 0. Meshing with this rack are opposed beveled gear wheels or pin ions 21. and 22 loose on a 23 extending through to a power plant 24, said shaft bewardly 111g supported th beveled gear wh.

power plant suitably members 1 and thereof.

longitudinal shaft the yoke 16 and forrough the medium of the eels 21 and 22, and said connected to the side 2 intermediate the ends The beveled gear wheels 21 and 22 have huh portions journaled in bearings 25 carried by the member 1, and the hub portions of said beveled with clutz-h teeth gear wheels are provided. 26 adapted to be engaged .llhe traction. wheel may ion gear wheels 21 and by clutch members 27 slidably keyed on the longitudinal drive shaft 23. The clutch members 27 are shifted through the medium of levers 28, pivotally supported by brackets 29 from the bearings 25, and said levers are connected by a rod 30 so as to be shifted in synchronism to alternately place the .elutch members in driving relation to the beveled 22. The rear end of the rod 30 is connected to an operating lever 31 supported from the side frame 1 and capable of being fixed in an adjusted position. The forward end. of the shaft 23 extends into a casing 32 of the power plant 2%, said casing containing a conventional form of reduction gear mechanism, so that the power of the power plant 2% may be reduced relative to the traction wheel. The power plant has been shown as a V type engine or motor, and it may be placed at a slight inclination relative to the side members 1 and 2 so that power may be conveniently transmitted rearwardly to the tractor wheel 18. Adjacent the power plant 24: is a combined fuel and water tank and such other appurtenances or accessories as are necessary for the power plant may be conveniently located in proximity thereto.

Suitably connected to the side member 1, at the bearing 13, is an inverted Ushaped frame 34 having its outer or free end supported by a revoluble wheel and this wheel hasits axis alining with the axle 15. The wheel 35 and the frame 3% constitute athird wheel attachment for the tractor,

and the frame 34: is connected by a brace 36 to the side member 1 and supports the bracket 12 for the steering shaft 9. The third wheel attachment lends stability to the tractor and the frame 23 i of said r t chment provides clearance for plants that are to be cultivated by implements eitl'ier attached to the frame 3% or to the main frame of the tractor. As an instance of an implement being attached to the main frame of a tractor, there is shown a cultivator or gang plow 37 which has its forward end pivotally connected to the member 2, as at The implement may have its rear end raised and lowered relative to the ground byan operating lever 39 having a link connection 4:0 with said implement, said operating lever being provided with a suitable rack and pawl locking mechanism, as indicated at ll. v

Since the third wheel attachment is well braced relative to the main frame of the tractor, it is apparent that various kinds of implements may be connected to the attachment and the main fame of the tractor, so as to be pulled along in proper relation to growing plants to till soil in proximity thereto. In the operation of the tractor, it is possible to obtain power from the power plant for operating various kinds of farm macl'rinery, while the tractor is statioinu'y, and the manner in which the power is transmitted to the traction wheels permits of the tractor operator delivering power to the traction wheel so as to move the tractor forward or rearward, depending on which beveled gear wheel or pinion 2L or 2;- is being driven by the shaft E3. The speed at which the tractor is operated depends on the reduction nearing; between the power plant and the traction wheel, and as montionml in the beginning, I reserve the right to any type of power plant which may' be located intermediate the ends of the tractor and in direct alinement with the traction wheel s.

It is thought that the utility of the tractor will be apparent without further description, and while in the drawinp there is illustrated a preferred embodiment of my invention, it is to be understood that the structural elements are susceptible to su h variations and H'KXllfiCltlillllS as fall within the scope of the appended claims.

W'hat I claim is:

l. A tractor comprising: a main frame, and upwardly and forwardly extending head piece carried by said frame. a steering wheel having a turning post in the forward end thereof. a sector gear carried by the post of said steering wheel. a traction wheel at the rear end of said frame and alinino with said steering; wheel, and siniporting said frame below the axis of said wheel. a power plant intermediate said wheels and in alinement therewith, a reduction ,Ill'llllllf intermediate said traction wheel and said power plant and adapted for transmitting power to said traction wheel. a side yoke carried by said frame, a third wheel ontirely outside of said yoke and supporting said yoke, a bracket carried by said yoke, a bearing; on said head piece in alincmont with said bracket, a steering: shaft journaled in said bearing: and said bracket, and a beveled gear wheel. on said shaft. and meshing; with said sector gear adapted for turning the post of said steering wheel.

2. A tractor as characterized in claim .1.

wherein said steering shaft is in the central,

in the presence of two witnesses.

STANLEY R. Do BRIE.

Witnesses ANNA M. Donn, KARL I-I. BUTLER. 

